Mo Yutian, an introverted high school student with few friends, met two aliens, Yan Eunjun and Mu Hyuk. They were irreconcilable brothers. In order to compete for the energy stone that entered Mo Yutian's body, he became a transfer student in her class. In the process of protecting Mo Yutian, they gradually fell in love with the kind-hearted Mo Yutian. While getting along with Yan Enjun and Mu He, Mo Yutian slowly integrated into the class and became optimistic and confident. At this time, Yan Enjun inexplicably became Lei Xin'er's fiancé, and then Mo Yutian and Lei Xin'er were kidnapped together. The youthful campus was shrouded in human conspiracy.